Elevator



May 27 1924. 1,495,394

I J. BERGSTEN ELEVATOR Filed May 51 1922 INVENTOR,

Patented may 27, 1924.

@IE SIg inane JOHN BERGSTEN, OF 'IAFT, CALIFORNIA, ASSIGNOR, BY MESNEASSIGNMENTS, 'IO STANDARD MACHINE COMPANY, A CORPORATION.

ELEVATOR.

application filed May 31,

To all it may concern:

Be it known that I, JOHN BEResTnN, a citizen of the United States,residing at Taft, in the county of Kern and State of California, haveinvented new and useful Improvements in Elevators, following is aspecification.

This invention relates to elevators, and

particularly to well elevators for handling casings, tubings, suckerrods and other elements and apparatus involved in the drilling,operation and maintenance of oil and other wells; and it has for itsobject the provision of an improved elevator of the generalcharacteristics above designated, which will be superior in point ofrelative inexpensiveness and simplicity of construction, durability andpositiveness and eficiency in operation, resistance to the stressesincident to use in operation, and general serviceability. I Theinvention contemplates an elevator which is so formed as to receive andhold tubings, whether they be of the plain or upset style. In thisparticular the elevator is designed for service within the general fieldabove defined and the elevator is universal in its application,obviating the necesity of providing different forms of elevators fordifi'erent styles of tubing. Other details of the invention reside inthe specific form of latch mechanism, as well as the ease and facilitywith which the elevator may be used. 1

With the above initially stated objects in view, the invention consistsin the novel provision, construction, combination, association, relativearrangement and formation of parts, members and features, all ashereinafter described, shown in the drawing, and finally pointed out inclaims.

In the drawing:

Figure 1 is a fragmentary elevation of the improved elevator engagingtubing and supporting the same; a

Figure 2 is a view similarto Figure 1, said view having a part thereofin cross section and taken on the line 2-2 of Figure '3, and looking inthe direction of the appended arrows;

Figure 3 is a cross sectional viewof the elevator taken on theline 3-3of Figure 1, and looking in the direction of the appended arrows;

Figure 4 is a view similar to Figure 3,

of which the tubing operated 1922. Serial No. 564,780.

and showing an open position of the latch member;

Figure 5 is a fragmentary view of the said device taken on the line 5-5of Figure 3, and looking in the direction of the appended arrows; and

Figure 6-'s a fragmentary view of certain features of the invention,taken on the line 6-6 of Figure 3, and looking in thedirection of theappended arrows.

Corresponding parts in all the figures are designated by the samereference characters.

Referring with particularity to the drawing, the improved elevator isdesignated in its entiretyby A, of which a is the bail or suspensionmeans, and I) and c the body and gate members, respectively, orconsidered broadly the clamping and holding means. The body member I) isformed with a slot 1 giving a bifurcated appearance to the body, that isto say, two spaced arm members 2 and 3 and an inter-connecting portion4. The body I) is provided with two trunnions 5 and 6 and the bail, asis customary, is provided with eye members 7 and 8 adapted to engagesaid trunnions, and whereby the body and gate may be carried, orswiveled if desired. Both arms 2 and 3 of the body I), as well as theinter-connecting portion 4 between the arms is recessed as shown at 9,10 and 11, and a portion of the'gate member 0 is confined within therecesses 9 and 10 when said gate is in the position as shown in Figure3. In particular the arm 2 is relieved at the part marked 12, wherebythe gate member may swing to an open position, as shown in Figure 4,ready to receive 13 or other elements and apparatus involved in thedrilling. The opposite arm 3 is formed to receive a locking means 14 bymeans of a handle 15. gate 0 will be described first and then itsconnection with the body, and the operation will follow; in thisparticular, referring to Figure 1, it will be seen that the gate memberis so formed as to have a curved portion or arm 16 and aninter-connecting part or arm 17, the curved portion 16 being normallyreceived within the recess 10 when the gate is in the closed positionshown in Figure 3 with the part 17 of a size corresponding to the depthor thickness of the body member b. The part 17 is provided with flanges18 and 19- at each edge thereof,

The

33. The tubular which flanges overlap the body 5 when the gate is inclosed position. To permit this overlapping, the body at the extremityof the arm portion 3 is grooved as shown at 20 and 21, and the tongue,as 22, formed by the grooves 20 and 21 in the body is received betweenthe flange extensions of the gate 0. It will thus be seen that when thegate is in the closed position illustrated in h igures l and 3 the gatemay aid in carrying the weight of the work imposed upon the elevator. Topermit the gate to swing open or closed, the said gate is pivoted to thesaid body as by means of a p n 23 passing through a part of the body andthrough an opening in the gate. The curved arm portion 16 of the gate 0lies in advance of the arm 17 and is the first to contact with any work,with the part 17 following the work and closing behind it. lit will beseen that the relieved portions 20 and 21 formingrthe tongue 22 are inreality abutments upon which the flanges 18 and 19 rest when the gate isin closed position. The curved arm 16 aids in sustaining any work bybeing within the recess 10 of the body, and the pin 23 as a consequencecarries very little weight. To maintain the gate 0 in closed position llprovide the locking means M which includes a tubular member 2a closed atone end and adapted to fit within the "recessed portion 9 of the arm 3.A

countersunk recess 25 in the arm 3 is adapted to receive a jection 27.Within the tubular member 2a is confined a coil spring 28, theprojection 27 being received within the coils of the spring for aid inguiding movement of the spring and the tubular member 24, as will beseen in Figure 3. In order to retain the plate 26 in position within thecounter-sunk recess, the arm 3 is counter-sunk at both ends as at 29 and30, thus forming two lug members 31 and 32, as between the recesses 25,29 and 30, there being a bore extending transversely through the lugs 31and 32,

which boreis adapted to receive a retaining means for holding the platemember 26 in position within the recess 24, said means in the showing ofFigure 6 being a cotter pin member. 2a is formed with a protuberance orlug 3d and the pivoted lever arm or releasingtrigger 15 is bifurcated asat 35, the lug 3% being received be tween the two members forming saidbifurcation. The arm or trigger 15 is pivoted as at 36 within the recess9 to the arm 3, and the free end 37 of said arm is curved to form afinger-piece. Thus, upon asping or otherwise contacting with thecrpiece, it is possible to move the latch back and forth, whereby itmaybe either closed or opened to engage the gate or release the gate.

The gate and the body are so formed that plate 26 carrying a pro armsacross said recess in having portions which jointly neeaaee they mayaccommodate either plain or upset tubing, and in this particular,reference being had to Figures 2 and 5, it is to be noted that one faceof said gate and body is recessed as at 38, whereby the upset portion ofthe tubing may be accommodated. The opposite side of the gate does notcarry a recess, and tubing carrying collars may be accommodated by saidside, as illustrated in Figure 1. This construction makes this elevatoruniversal in its adaptation and use, overcoming the necessity ofproviding different forms and shapes of elevators for difierentrequirements of use and service.

In operation it is only necessary to rotate the body with its gate,whereby the same may accommodate either the plain or upset tubing andthen close the gate, the latch mechanism automatically being forced intoposition to lock the gate closed. A releasing of the trigger will forcethe latch back and allow the gate to be swung open. Tt will thus be seenthat T have provided a structure that is simple, economical inmanufacture, and which will perform the work required of it in a facilemanner.

lit is obvious that various changes and modifications may be made indeparture from the particular showing and description, all of saidchanges and modifications being made within a fair interpretation of theclaims. 1

Having thus disclosed my invention, It claim and desire to secure byLetters Patent:

1. In an elevator, a body having spaced arms providing a recess adaptedto accommodate work, a gate having spaced arm portions molinted in arecess in the body portion and adapted to be swung to extend the thebody portion, the work being adapted likewise to be accommodated betweensaid arms, whereby one of said arms leads the work and the other of saidarms follows the work upon its accommodation within the recessin saidbody; said body and said following arm having portions which jointlyreceive the weight of the load when said gate is in closed positionmeans being provided for maintaining said gate in such closed position;means likewise being provided for freeing the gate from such closedposition.

2. In an elevator, a body having spaced arms providing a recess adaptedto accommodate'work, a gate havingspaced arm portions mounted in arecess in the body portion and adapted to be swung to extend the armsacross said recess in the body portion, the work being adapted likewiseto be accommodated between said arms, whereby one of said arms leads thework and the other-of said arms follows. the work upon its accommodationwithin the recess in said body; said body and said following arm receivethe llltl weight of the load when said gate is in closed position; meansbeing provided for maintaining said gate in such closed position; 'meanslikewise being provided for freeing the gate from such closed position;said means comprising a spring-actuated latch cooperating with thefollowing arm of said gate. and a releasing trigger for retracting saidlatch,

3. In an elevator, a body having spaced arms providing a recess adaptedto aooommodate work, a gate having spaced arm portions mounted in arecess in the body portion and adapted to be swung to extend the armsacross said recess in the body portion, the work being adapted likewiseto be accommodated between said arms, whereby one of said arms leads thework and the other of said arms follows the'work upon its accommodationwithin the recess in said body; said body and said .following arm havingportions which jointly receive the weight of the load when said gate isin closed position; means being provided for maintaining said gate insuch closed position; means likewise being provlded for freeing the gatefrom such closed position; said means comprising a spring-actuated latchcooperating with the following arm of said gate, and a releasing 39trigger for retracting said latch; said latch arms across said recess inthe body portion,

the work being adapted likewise to be ac- V commodated between saidarms, whereby one of said arms leads the work and the other of said armsfollows the work upon its accommodation within the recess in said body;said body and said following arm havingportions which jointly receivethe weight of the load when .said gate is in closed position; saidelevator being reversibly mounted, and said body having upper and lowerabutments; said gate having top and bottom flanges cooperatingrespectively with said abutments by which weight of the work may betransmitted to the respective abutment.

In testimony whereof, I have signed myv name to this specification inthe presence of two subscribing witnesses.

JOHN BERGSTEN.

Witnesses: i E. L. Jonas,

0. G. PATrERsoN.

